Modern Times (1936)
A few of the shots involving the robot about 15 min. into the movie are homages to the "eating machine" in Modern Times. The "split desk" scene later in the film could also be looked at as a reference.

The Good, the Bad and the Ugly (1966)
When Sam is about to enter Jack's office, there is a drop of blood on the floor which he smears with his foot - this is a clear visual reference to an almost identical shot in "The Good, the Bad and the Ugly" when Blondie is called into Angeleye's room after Tuco has been tortured

M*A*S*H (1972)
(TV Series)
Harry Tuttle is named after a running gag in MASH's first season

Monty Python and the Holy Grail (1975)
'Brazil' uses a piece of music in the first Ian Holm scenes that was notably used in a comic sequence in Gilliam's previous film, 'Monty Python and the Holy Grail'.

Grand Theft Auto 2 (1999)
(Video Game)
In Brazil, sam drives a Messerschmitt through a dystopian society. In GTA2, you can drive a car known as a "Schmitt" from an overhead view. The real referance is that your car can catch on fire as seen from an overhead view and Sam's is also set on fire and seen from an overhead view when he looks out to see Jill from the apartment complex

Splinter Cell (2002)
(Video Game)
In the "CIA HQ" mission, we learn that a targetted character is in the "Information Retrieval" department. This is a probable reference to the fictional department the main character from "Brazil" worked in.

Once Upon a Time in Mexico (2003)
In Brazil, the main character ends up being strapped to a torture-chair-thing, while someone he trusts is about to drill out his eyes (POV shot). This also happens in O.U.A.T.I.M. Also, in one of the scenes blood appears on the camera lens, which also happens during aforementioned scene in Brazil.

Film Geek (2005)
In his apartment, Scotty has a book about this movie called "The Battle Of Brazil".

Splinter Cell: Chaos Theory (2005)
(Video Game)
In the beginning of mission 5, if you interrogate the first guard you encounter, Sam will talk about him being "Henry Tuttle", and the guard will remind you to fill out a 267b/6. Altough in the film it's just a 27b/6.

Death at a Funeral (2007)
Uncle Alfie (Peter Vaughan bound to the wheelchair) needs considerable help to get to/onto the toilet. The scene is almost identical to the scene in Brazil where Mr. Helpman (again Peter Vaughan in a wheelchair) needs Sams assistance for the same business.

Shoot 'Em Up (2007)
Let me give you a piece of advice. Never trust the people who stand to profit, plain and simple. They're the bad guys.

Chuck: Chuck Versus the Fat Lady (2008)
(TV Episode)
The car of the Fulcrum agent following Chuck and finally kidnapping Jill is labeled "Tuttle electric". This references the character of engineer/"terrorist" Harry Tuttle in Terry Gilliam's "Brazil".

Iron Maiden: Flight 666 (2009)
When the band arrives in Brazil, the theme song from the movie Brazil is played over a shot of clouds in the sky.

Repo Men (2010)
SPOILER: Both Sam Lowry and Remy face a bureaucratic organization. Later, when they are convinced of their victory over the system, it is revealed that they are just living an illusion, while in reality they were defeated.

Cockneys vs Zombies (2012)
In the bank scene when they are taken into the office, the bank lady asks if they have a "27B stroke 6". This is the form that Sam Lowry asks the plumbers at Central Services for when they turn up in his apartment in Brazil.

NCIS: Phoenix (2012)
(TV Episode)
The missing "casefile form" in the episode has the same name as the infamous "Form 27B/6" that plunges Sam Lowry into a beaurocratic nightmare in the film. The use in "Brazil" is in turn an in-joke, as it is the number and floor of the address at which George Orwell lived when he was writing "1984".

The Screenwriter (2012)
(Short)
"Central Services/The Office" is used in the movie.

The Zero Theorem (2013)
A spiritual successor to Brazil, this film draws many inpsirations and themes from the older film.

Features

Casablanca (1942)
Just before Sam Lowry says "Here's looking at you" to his boss, Humphrey Bogart's character in Casablanca can be heard saying that same, famous line "Here's looking at you, kid". Thus, the film is heard in the background, but actually never seen on screen.

Spoofs

Walk East on Beacon! (1952)
One scene, a conversation between two men in snap brim trilby hats where they warily seem to talk around a subject so as not to give the other too much to go on was lifted intact for Terry Gilliam's Brazil (1985).

Spoofed in

We're Back! A Dinosaur's Story (1993)
Elsa, the pteradactyl, flies with Louie through the N.Y.C. sky scrapers and over the parade towing ballons. Much like in Sam's dream where he flies through the stone monoliths and watches the FODS tow Jill in the rusty cage